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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 38650-2020 |
Safety information markings of piping systems—Design principles and requirements 管道系统安全信息标记 设计原则与要求 |
China National Standards systems—Design |
 English PDF |
| GB/T 20501.4-2018 |
Public information guidance systems—Design principles and requirements for guidance elements—Part 4: Street guidance map 公共信息导向系统 导向要素的设计原则与要求 第4部分：街区导向图 |
China National Standards systems—Design |
English PDF |
| GB/T 20501.3-2017 |
Public information guidance systems—Design principles and requirements for guidance elements—Part 3: Location plans 公共信息导向系统 导向要素的设计原则与要求 第3部分：平面示意图 |
China National Standards systems—Design |
English PDF |
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